The most efficient satellite outbound channel
DVB is an international organization who set standards for the transmission of digital data over satellite. The DVB-S2 is the latest generation standard for transmission over satellite. The “ACM” feature of this standard provides for the Adaptive Coding and Modulation (hence the ACM acronym) of the outbound channel.
DVB-S2 Key Features:
- 8PSK and QPSK Modulation
With the addition of 8PSK modulation the DVB-S2 standard increases the bits per hz over satellite by up to 50%.
- BCH with LDPC Coding
The forward error correction scheme of BCH/LDPC is more powerful than turbocodes and results in much lower power utilization of the satellite.
- Adaptive Coding And Modulation (ACM)
The ACM feature means that the coding (FEC rate) and modulation (8PSK or QPSK) DVB-S2 outbound carrier can be dynamically modified to optimize the performance per terminal.